Patent ES-8504944-A3 (ES)
Title: Process material supply to steel converter
IPC: C21C5/48
Filed: 1983-12-23
Abstract: EP--84707 A Hydrocarbon shielding fluid, for the gaps surrounding main tuyere pipes in the base of a tilting steel converter, is supplied through a hollow trunnion pin. Within is a block containing a number of small longitudinal passages, each communicating with a separate transverse passage. These terminate in a recess in the side of the block, and each is counterbored. - Into each is sealed an adaptor with an enlarged cylindrical head, held in place by a retaining plate, fitting the recess, and bored to accommodate the tails of the adaptors. These tails are threaded for a pipe to be connected to each, to supply individual tuyeres. - The adaptor assembly facilitates the connection of separate supply pipes for individual tuyeres to the passages through the trunnion pin. A small number of larger passages may also pass through the block, e.g. for oxygen, cooling water, powdered coal or fuel oil, allowing all to be independently controlled.  (0/6) EPAB- EP--84707 B Hydrocarbon shielding fluid, for the gaps surrounding main tuyere pipes in the base of a tilting steel converter, is supplied through a hollow trunnion pin. Within is a block containing a number of small longitudinal passages, each communicating with a separate transverse passage. These terminate in a recess in the side of the block, and each is counterbored. - Into each is sealed an adaptor with an enlarged cylindrical head, held in place by a retaining plate, fitting the recess, and bored to accommodate the tails of the adaptors. These tails are threaded for a pipe to be connected to each, to supply individual tuyeres. - The adaptor assembly facilitates the connection of separate supply pipes for individual tuyeres to the passages through the trunnion pin. A small number of larger passages may also pass through the block, e.g. for oxygen, cooling water, powdered coal or fuel oil, allowing all to be independently controlled.  (14pp Dwg.No. 0/6) - EP--84707 B A metallurgical vessel having bottom tuyeres for delivering fluids beneath the level of molten metal within the vessel and trunnion pins for tilting the vessel about a generally horizontal axis, at least one of said trunnion pins having a hollow bore a block disposed within said bore a first plurality of passages formed generally axially of said block and a second plurality of passages formed in said block extending laterally of said first passages, each passage of said second plurality intersecting a different one of the axial passages of said first plurality, and an adapter assembly for coupling a pipe to each passage of said second plurality of passages so that each of said passages can be coupled to an individual tuyere said adapter assembly including a plurality of adapters each adapter having a head portion sealingly engaging said block in communication with a different one of the passages of said second plurality of passages, retainer means for securing each of said adapters in its respective second passage, and means for coupling a pipe to a different one of said adapters.  (8pp) USAB- US4428564 A Metallurgical vessel partic. converter has improved means for delivering fluids in separate flow paths to the tuyeres. At least one of the trunnion pins has a hollow bore (44) receiving a cylindrical block (46) contg. axial bores (47,48,49,50), each one being intersected by a transverse passage (53,54, 55, 56). Adapter assembly connects pipe to each passage so that they can be coupled to an individual tuyere. Each adapter member has a head which seals in communication with a different one of the passages. Retainer secures each of the adapters to the respective passage.  (7pp)h